Among your selling strategies, you may want to push your customers to spend more with a 20% discount on the condition that they spend a minimum of $100. Additionally, you will also offer free shipping.
For this or similar discounts, you can set up a cart discount rule.
This rule has the highest priority, will be activated manually, can be combined with other offers and does not allow free shipping.
To make sure the minimum amount in cart is set up, you can create one condition based on Cart subtotal and set up the minimum amount of $100.
Finally, set up the 20% discount in the option below:
Here you can see how it looks like in cart: the subtotal is $124,48, so a 20% off applies ($24,90):